/Engine/Source/Runtime/Core/Public/GenericPlatform/GenericPlatformFile.h
Contains the information that's returned from stat'ing a file or directory
struct FFileStatData
FDateTime
AccessTime
The time that the file or directory was last accessed, orFDateTime::MinValueif the access time is unknown
bool:  1
bIsDirectory
True if this data is for a directory, false if it's for a file
bool:  1
bIsReadOnly
True if this file is read-only
bool:  1
bIsValid
True if file or directory was found, false otherwise.
FDateTime
CreationTime
The time that the file or directory was originally created, orFDateTime::MinValueif the creation time is unknown
int64
FileSize
Size of the file (in bytes), or -1 if the file size is unknown
FDateTime
ModificationTime
The time the the file or directory was last modified, orFDateTime::MinValueif the modification time is unknown